WO2010140842A2 - Wind turbine with generator disposed at front thereof - Google Patents

Wind turbine with generator disposed at front thereof Download PDF

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Publication number
WO2010140842A2
WO2010140842A2 PCT/KR2010/003559 KR2010003559W WO2010140842A2 WO 2010140842 A2 WO2010140842 A2 WO 2010140842A2 KR 2010003559 W KR2010003559 W KR 2010003559W WO 2010140842 A2 WO2010140842 A2 WO 2010140842A2
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WO
WIPO (PCT)
Prior art keywords
generator
rotor
rotating shaft
housing
hub
Prior art date
Application number
PCT/KR2010/003559
Other languages
French (fr)
Korean (ko)
Other versions
WO2010140842A3 (en
Inventor
김두훈
류지윤
박진일
방조혁
황진수
서동진
Original Assignee
유니슨 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 유니슨 주식회사 filed Critical 유니슨 주식회사
Priority to JP2012513870A priority Critical patent/JP2012528982A/en
Priority to US13/322,924 priority patent/US9057355B2/en
Priority to CN201080024653.3A priority patent/CN102459890B/en
Publication of WO2010140842A2 publication Critical patent/WO2010140842A2/en
Publication of WO2010140842A3 publication Critical patent/WO2010140842A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F03D15/20—Gearless transmission, i.e. direct-drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/22—Foundations specially adapted for wind motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
    • H02K7/1838—Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F05B2220/7066—Application in combination with an electrical generator via a direct connection, i.e. a gearless transmission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/14—Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

Definitions

  • the present invention relates to a wind power generator, and more particularly, to a wind power generator having a front-position generator such that the rotational energy of the rotor is directly connected to the generator without going through a speed increaser.
  • a wind power generator generates electric power by using the power of a rotor rotated by natural wind, and typically increases the rotation speed of the rotor and the rotor rotated by the force of wind on the top of the tower spaced from the ground. It is coupled to the gearbox and the gearbox to rotate the generator to produce power is sequentially combined.
  • Korean Patent No. 695012 filed by the applicant of the present application on March 24, 2006, has proposed a structure of a wind power generator excluding a speed increaser, which is fixed from the ground as shown in FIG.
  • the tower 100 is installed at a height, and the rotor 200 having a plurality of rotor blades 202 fixed to the hub 201 is installed at the upper side of the tower 100, and the rear of the rotor 200 is installed.
  • the rotating shaft 300 which is coupled and rotated of the tower 100 is supported by the bearing 301, and the generator 400 is coupled to the rear end of the rotating shaft 300.
  • the generator 400 includes a rotating plate 402 coupled to the rotating shaft 300 to rotate in an inner space of the housing 401 formed in a cylindrical shape, and rotates around the outer end of the rotating plate 402.
  • the electrons 403 are coupled, and the rotor 403 and the stator 404 causing electromagnetic induction are coupled along the inner surface of the housing 401.
  • the present invention has been made in order to solve the above-mentioned conventional problems, the object of the rotor and the generator to ensure that the rotor and the generator is stably fixed to the tower while minimizing the diameter limit of the generator can be designed of the support bracket It is to provide a wind turbine having a front-side generator coupled to the front.
  • an object of the present invention is to ensure a rigid coupling with the housing while the diameter of the bearing for supporting the rotating shaft is small.
  • an object of the present invention is to allow the rotor to rotate smoothly while preventing rain or dust from flowing into the housing through the gap between the housing and the rotating shaft.
  • the object of the present invention is to maximize the torsional rigidity of the rotating shaft while allowing the operator to easily move between the support bracket and the generator and the hub.
  • the present invention is a hub is formed in the center, the rotating shaft protrudes to the rear side of the hub, a plurality of rotor blades coupled to the outer side of the hub; And a housing disposed on the upper outer side of the tower to the rear side of the rotor and having a stator coupled to an inner side of the cylindrical body, and a rotor rotatably coupled to the inner side of the housing to be rotatably operated by the rotation of the rotor.
  • Generator to produce It is fixed to the top of the tower and the rotor and the generator support bracket to be integrally fixed to the tower; is configured to include.
  • a through hole is formed in the front and rear of the housing so that the rotating shaft is inserted, the inner surface of the through hole is provided with a bearing for supporting the rotating shaft, the rotating shaft is inserted into the central portion of the rotor is coupled Characterized in that the coupling hole is formed.
  • the rotating shaft is characterized in that the diameter of the front side coupled to the hub is formed gradually larger than the diameter of the rear side.
  • the rotating shaft is formed in a cylindrical shape with the rear opening is formed to extend integrally to the rear side of the hub, the rotating shaft is inserted into the central portion of the rotor is formed in the cylindrical coupling hole is integrally coupled, the support bracket Passing through the inside of the housing and the rotating shaft to the front side is characterized in that the fixed shaft is rotatably coupled to the hub.
  • the rotating shaft is formed in a cylindrical shape with the rear side open to extend integrally to the rear side of the hub, is formed in a cylindrical bent inwardly of the housing so that the rotating shaft is inserted into the front of the housing and the rotating shaft on the inner side Shaft insertion hole is formed is coupled to the bearing to support, characterized in that formed in the center portion of the rotor having a diameter corresponding to the diameter of the rotating shaft is formed with a coupling tube integrally fixed to the end of the rotating shaft.
  • the rotating shaft is formed in a cylindrical shape with the back of the opening is formed integrally extending to the rear side of the hub, the coupling hole is formed through the diameter corresponding to the rotating shaft in the central portion of the rotor is fixed to the end of the rotating shaft integrally Is formed, the front side is opened to the front side of the support bracket is in communication with the inner space of the support bracket and inserted into the inside of the housing fixed and the support tube coupled to the bearing so that the rotating shaft is rotatably coupled to the outer end is formed It is characterized by.
  • FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention.
  • Figure 2 is a longitudinal sectional view showing a second embodiment of the present invention.
  • Figure 3 is a longitudinal sectional view showing a third embodiment of the present invention.
  • Figure 4 is a longitudinal sectional view showing a fourth embodiment of the present invention.
  • Figure 5 is a longitudinal sectional view showing an example of a conventional wind power generator.
  • FIG. 1 is a longitudinal cross-sectional view showing a first embodiment of the present invention, as shown in the present invention is a rotor (rotor) is not coupled between the rotor 20 and the generator 30 is rotated by the force of the wind ( 20 is related to a wind power generator that is directly connected to the rotation of the generator 30, in particular, the generator 30 is designed to be fixed to the support bracket 40 is disposed at a position spaced apart from the top of the tower (10) It relates to a wind turbine with a rotor and a generator coupled to the front of the support bracket so that restrictions on the diameter of the generator 30 are eliminated.
  • the tower 10 is a structure for supporting various parts of the wind turbine at a position spaced from the ground, to be formed of a metal rod having rigidity, and to allow the rotor 20 to be disposed at a high position where the wind speed and the wind volume are high. To be perpendicular to the ground.
  • the rotor 20 rotates and operates the rotor 33 while being rotated by the force of the wind, so that the hub 21 having the same center as the above-described rotor 33 is formed in the center portion, and the hub Rotating shaft is protrudingly coupled to the rear side of the 21, by combining a plurality of rotor blades to the outside of the hub 21, if the force of the wind rotates the rotor blade, the hub 21 is rotated and finally coupled to it Let it rotate.
  • the generator 30 is to be rotated by the rotation of the rotor 20 to produce power, which is disposed outside the upper end of the tower 10 toward the rear side of the rotor 20 and coupled to the inner side of the cylindrical body And a rotor 33 rotatably coupled to the housing and the inner space of the housing and coupled to the rotor 20 and rotated.
  • stator 32 of the generator 30 is fixedly disposed on the inner surface of the housing, so that smooth power generation by electromagnetic induction with the rotor 33 is achieved. It is desirable to allow a plurality of bearings 312 to support the coupling.
  • the support bracket 40 allows the generator 30 and the rotor 20 to be integrally fixed to the top of the tower 10 and at the same time the load of the generator 30 and the rotor 20 is stably tower 10.
  • the bottom surface is fixed to the top of the tower 10 while forming a plane
  • the front side is arranged in a vertical direction with the ground so that the generator 30 is fixed
  • the rear side of the generator 30 The rear load supporting portion 41 is formed to be inclined upwardly to the rear side, so that the loads of the generator 30 and the rotor 20 are dispersed while being firmly fixed.
  • the housing is not caught or contact with the tower 10, thereby reducing the constraint on the designable diameter of the housing and the rotor 33, thereby reducing the housing and the rotor (
  • the diameter of 33) can be made large, and the angular velocity at the part where the stator 32 and the rotor 33 face each other is increased, thereby improving the power production efficiency.
  • the above-described rotation shaft is to be formed of a metal rod having a rigid, etc.
  • the through hole 311 is formed in the front and rear of the housing so that the rotation shaft is inserted, the inner surface of the through hole 311 A bearing 312 supporting the rotating shaft is provided, and a tubular coupling hole 331 to which the rotating shaft is inserted and coupled is formed at the center of the rotor 33.
  • the front side and the rear side of the rotating shaft are simultaneously supported by the housing, thereby not only preventing vibration generated in the rotating process of the rotating shaft, but also effectively preventing the bending of the rotating shaft and minimizing the diameter of the bearing 312. It will be easy to maintain and repair the wind turbine.
  • the rotating shaft is formed so that the diameter of the front side connected to the hub 21 is gradually larger than the diameter of the opposite side, the movement distance of the rotating shaft is limited when the rotor 20 is pushed toward the generator 30 during the strong wind blowing While the rotor 33 of the generator 30 is able to maintain a smooth rotation it is desirable to ensure a stable power production is made.
  • FIG. 2 is a longitudinal sectional view showing a second embodiment of the present invention.
  • the above-described rotating shaft among the components of the first embodiment is formed to have a cylindrical shape with a rear surface open to the rear side of the hub 21.
  • the center of the rotor 33 is inserted into the rotating shaft is inserted into the cylindrical coupling hole 331 to be integrally formed, and the inside of the housing and the rotating shaft to the front side of the support bracket 40 Passing through the fixed shaft 42 rotatably coupled to the inner side of the hub 21 to be fixed to protrude.
  • the fixed shaft 42 is to maintain the spaced apart from the rotating shaft and the coupling hole 331 so that the friction with the fixed shaft 42 does not occur when the rotating shaft and the rotor 33 is rotated
  • the hub 21 is provided with one or more bearings 312 to be rotatably coupled to the fixed shaft 42 so that the load of the rotor 20 does not pass through the generator 30 fixed shaft Directly through 42 to the support bracket 40.
  • the load of the rotor 20 and the load of the generator 30 are separately distributed and transmitted to the support bracket 40, thereby not only maximizing the load bearing force of the support bracket 40, but also torqueing the generator 30.
  • the diameter of the bearing 312 for transmitting the smaller the weight of the hub 21 is reduced.
  • FIG. 3 is a longitudinal sectional view showing a third embodiment of the present invention.
  • the above-described rotating shaft among the components of the first embodiment is formed to have a cylindrical shape with a rear side open to the rear side of the hub 21.
  • the front of the housing is bent in a cylindrical shape toward the inner side of the housing so that the rotation shaft is inserted, the shaft insertion hole 313 is formed to combine the bearing 312 supporting the rotation shaft on the inner surface
  • the central portion of the rotor 33 is formed to a diameter corresponding to the diameter of the rotating shaft to form a coupling pipe 332 integrally fixed to the end of the rotating shaft.
  • the bearing 312 is disposed between the rotating shaft and the shaft insertion hole 313 of the housing, it is possible to effectively block rain or snow or dust from entering the generator 30, thereby preventing short circuits due to moisture and foreign matter. In addition to preventing, it is possible to prevent the corrosion of each component inside the generator (30).
  • FIG. 4 is a longitudinal sectional view showing a fourth embodiment of the present invention.
  • the above-described rotary shaft among the components of the first embodiment is formed so as to have a cylindrical shape with a rear side open, and protrudes toward the rear side of the hub 21.
  • a coupling hole 331 is fixed to the rotating shaft integrally, to the front side of the support bracket 40 described above
  • the front tube is opened and communicates with the inner space of the support bracket 40, and inserted into the inside of the housing and fixed to the outer end of the support tube 43, the bearing 312 is coupled to the rotating shaft to be rotatably coupled protrudes To form.
  • the inner space of the hub 21 is integrally communicated with the generator 30 through the generator 30 from the inner space of the support bracket 40, the worker enters the inner space of the support bracket 40 by using an elevator or the like.
  • the hub 21 can be easily accessed, so that the maintenance and repair work of the wind power generator is made simple.
  • the present invention provides a wind power generator that allows the rotor and the generator to be stably fixed to the tower while minimizing the diameter limitation of the designable generator, thereby maximizing the angular velocity at the position where the stator and the rotor of the generator correspond to the weight of the system. Minimize the vibration of the generator by ensuring that the generator is firmly fixed to the top of the tower.
  • the present invention is to form a through hole in the housing, so that the rotary shaft is inserted into the through hole so that the rigid coupling with the housing is made while the diameter of the bearing supporting the rotating shaft is made, the installation and disassembly and repair of the bearing is made easy The vibration generated during the operation of the rotor is reduced.
  • the present invention is to increase the bending stiffness as the length of the rotating shaft is shortened, the front diameter is formed larger than the rear side to prevent the rotating shaft is moved to the rear when the rotor is rotated, so that the rotating shaft by the strong wind Not only can it be prevented from bending or damaging, but it also has the effect of generating a more stable power generator.
  • the present invention has a fixed shaft so that the rotor is fixed directly to the fixed shaft protruding from the support bracket, the diameter of the bearing for transmitting torque to the generator is reduced, the weight of the hub is reduced, as well as the load of the generator Directly transmitted to the support bracket without going through will have the effect of maximizing the supporting force.
  • the present invention is to form a shaft insertion hole in the housing, to form a coupling tube in the rotor to prevent the inflow of rainwater or dust into the housing through the gap between the housing and the rotating shaft so that the rotor rotates smoothly
  • a shaft insertion hole in the housing
  • a coupling tube in the rotor to prevent the inflow of rainwater or dust into the housing through the gap between the housing and the rotating shaft so that the rotor rotates smoothly
  • the present invention is to form a cylindrical support tube coupled to the rotating shaft on the support bracket to enable the operator to easily move between the support bracket and the generator and the hub, the wind turbine generator maintenance and repair work will be more convenient. .

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The present invention relates to a wind turbine with a generator, which minimizes limitations on the diameters of constructible generators and is disposed at the front thereof for stably fixing a rotor and the generator to a tower, wherein the wind turbine with a generator disposed at the front thereof comprises: a rotor having a hub formed in the center and a rotation shaft protruded from the back of the hub, and coupled with a plurality of rotor blades outside the hub; a generator for generating electricity and having a housing disposed outside the upper part of the tower behind the rotor and coupled with a stator on the inner surface of a cylindrical body thereof, and a rotator rotatively coupled in the housing for rotating by the rotation of the rotor; and a supporting bracket fixed at the upper end of the tower for integrally fixing the rotor and the generator to the tower. Therefore, the bending rigidity of the rotation shaft is increased, angular velocity at a position where the stator and the rotator of the generator correspond to each other is maximized, and the weight of the entire system is minimized.

Description

전방 배치형 발전기를 갖는 풍력발전기Wind generators with front-side generators
본 발명은 풍력발전기에 관한 것으로, 더욱 상세하게는 로터의 회전에너지가 증속기를 거치지 않고 직접 발전기로 연결되도록 한 전방 배치형 발전기를 갖는 풍력발전기에 관한 것이다.The present invention relates to a wind power generator, and more particularly, to a wind power generator having a front-position generator such that the rotational energy of the rotor is directly connected to the generator without going through a speed increaser.
일반적으로, 풍력발전기는 자연의 바람에 의해서 회전되는 로터의 동력을 이용하여 전력을 생산하는 것으로서, 통상적으로 지면과 이격된 타워의 상단에 바람의 힘에 의해 회전되는 로터와 로터의 회전속도를 증가시키는 증속기 및 증속기에 결합되어 회전되면서 전력을 생산하는 발전기가 순차적으로 결합되어진다.In general, a wind power generator generates electric power by using the power of a rotor rotated by natural wind, and typically increases the rotation speed of the rotor and the rotor rotated by the force of wind on the top of the tower spaced from the ground. It is coupled to the gearbox and the gearbox to rotate the generator to produce power is sequentially combined.
하지만, 상기와 같이 증속기가 결합되는 경우에는 풍력발전기의 전체적인 구조가 복잡해져 제작 및 유지 보수가 힘들어질 뿐만 아니라, 풍력발전기의 중량이 증가되어 그에 따른 타워의 구조적인 강도 또한 증가되어야 하는 문제점이 있었다.However, when the speed increaser is coupled as described above, the overall structure of the wind power generator is complicated, making manufacturing and maintenance difficult, and the weight of the wind power generator is increased, thereby increasing the structural strength of the tower.
이러한 문제점을 해소하고자 본원 출원인에 의해 2006년 3월 24일 자로 출원되어 등록된 한국등록특허 제695012호에서는 증속기가 제외된 풍력발전기의 구조를 제안한 바 있는데, 도 5에 도시된 것과 같이 지면으로부터 일정 높이로 타워(100)가 설치되고, 상기 타워(100)의 상부측에 허브(201)를 중심으로 다수의 로터블레이드(202)가 고정된 로터(200)가 설치되며, 로터(200)의 후방 측으로는 타워(100)의 결합되어 회전되는 회전축(300)이 베어링(301)에 의해 지지되도록 하고, 회전축(300)의 후방 끝단에 발전기(400)를 결합하고 있다.In order to solve such a problem, Korean Patent No. 695012, filed by the applicant of the present application on March 24, 2006, has proposed a structure of a wind power generator excluding a speed increaser, which is fixed from the ground as shown in FIG. The tower 100 is installed at a height, and the rotor 200 having a plurality of rotor blades 202 fixed to the hub 201 is installed at the upper side of the tower 100, and the rear of the rotor 200 is installed. On the side, the rotating shaft 300 which is coupled and rotated of the tower 100 is supported by the bearing 301, and the generator 400 is coupled to the rear end of the rotating shaft 300.
또한, 상술한 발전기(400)는 원통형으로 형성된 하우징(401)의 내측 공간에 상기 회전축(300)과 결합되어 회전되는 회전판(402)을 구비하고, 상기 회전판(402)의 외측 끝단 둘레를 따라 회전자(403)가 결합되도록 하며, 하우징(401)의 내측면을 따라 상기 회전자(403)와 전자기 유도 현상을 일으키는 고정자(404)가 결합되도록 하고 있다.In addition, the generator 400 includes a rotating plate 402 coupled to the rotating shaft 300 to rotate in an inner space of the housing 401 formed in a cylindrical shape, and rotates around the outer end of the rotating plate 402. The electrons 403 are coupled, and the rotor 403 and the stator 404 causing electromagnetic induction are coupled along the inner surface of the housing 401.
하지만, 상기와 같이 회전축이 타워의 상단을 가로질러 결합된 경우에는 회전축의 길이가 타워의 직경 보다 길어짐에 따라 풍력발전기의 전체적인 중량이 증가될 뿐만 아니라, 회전축의 처짐 및 비틀림이 발생되는 문제점이 있었다.However, when the rotary shaft is coupled across the top of the tower as described above, as the length of the rotary shaft is longer than the diameter of the tower, the overall weight of the wind turbine is increased, and the deflection and torsion of the rotary shaft are caused. .
이에, 본 발명은 상기와 같은 종래의 제반 문제점을 해소하기 위하여 안출된 것으로, 그 목적은 설계 가능한 발전기의 직경 제한이 최소화되면서 로터 및 발전기가 타워에 안정적으로 고정되도록 한 로터와 발전기가 지지브래킷의 전면에 결합된 전방 배치형 발전기를 갖는 풍력발전기를 제공함에 있다.Accordingly, the present invention has been made in order to solve the above-mentioned conventional problems, the object of the rotor and the generator to ensure that the rotor and the generator is stably fixed to the tower while minimizing the diameter limit of the generator can be designed of the support bracket It is to provide a wind turbine having a front-side generator coupled to the front.
또한, 본 발명의 목적은 회전축을 지지하는 베어링의 직경이 작으면서도 하우징과의 견고한 결합이 이루어지도록 함에 있다.In addition, an object of the present invention is to ensure a rigid coupling with the housing while the diameter of the bearing for supporting the rotating shaft is small.
또한, 본 발명의 목적은 회전축의 굽힘 강성이 증대되도록 하고, 로터가 회전될 때 회전축이 후방으로 이동되는 것이 방지되도록 함에 있다.It is also an object of the present invention to increase the bending rigidity of the rotating shaft and to prevent the rotating shaft from moving backwards when the rotor is rotated.
또한, 본 발명의 목적은 로터가 지지브래킷에서 돌출된 고정축에 직접 고정되도록 함에 있다.It is also an object of the present invention to allow the rotor to be directly fixed to a fixed shaft protruding from the support bracket.
또한, 본 발명의 목적은 하우징과 회전축 사이의 틈을 통해 하우징의 내측으로 빗물이나 먼지 등이 유입되는 것이 방지되면서 로터가 원활하게 회전되도록 함에 있다.In addition, an object of the present invention is to allow the rotor to rotate smoothly while preventing rain or dust from flowing into the housing through the gap between the housing and the rotating shaft.
또한, 본 발명의 목적은 회전축의 비틀림강성이 극대화됨과 동시에 작업자가 지지브래킷과 발전기 및 허브 사이를 간편하게 이동할 수 있도록 함에 있다.In addition, the object of the present invention is to maximize the torsional rigidity of the rotating shaft while allowing the operator to easily move between the support bracket and the generator and the hub.
상기와 같은 목적을 달성하기 위하여, 본 발명은 중앙부에 허브가 형성되고, 상기 허브의 후방 측으로 회전축이 돌출되며, 상기 허브의 외측방으로 다수의 로터블레이드가 결합된 로터; 상기 로터의 후방 측으로 타워의 상부 외측에 배치되고 원통형 몸체의 내측면에 고정자가 결합된 하우징과, 상기 하우징의 내측에 회전 가능하게 결합되어 상기 로터의 회전에 의해 회전 작동되는 회전자로 구성되어 전력을 생산하는 발전기; 상기 타워의 상단에 고정되어 상기 로터 및 발전기가 타워에 일체로 고정되도록 하는 지지브래킷;을 포함하여 구성된다.In order to achieve the above object, the present invention is a hub is formed in the center, the rotating shaft protrudes to the rear side of the hub, a plurality of rotor blades coupled to the outer side of the hub; And a housing disposed on the upper outer side of the tower to the rear side of the rotor and having a stator coupled to an inner side of the cylindrical body, and a rotor rotatably coupled to the inner side of the housing to be rotatably operated by the rotation of the rotor. Generator to produce; It is fixed to the top of the tower and the rotor and the generator support bracket to be integrally fixed to the tower; is configured to include.
또한, 상기 하우징의 전면 및 후면에 상기 회전축이 삽입되도록 관통된 관통공이 형성되고, 상기 관통공의 내측면에 상기 회전축을 지지하는 베어링이 구비되며, 상기 회전자의 중앙부에 상기 회전축이 삽입되어 결합되는 결합공이 형성된 것을 특징으로 한다.In addition, a through hole is formed in the front and rear of the housing so that the rotating shaft is inserted, the inner surface of the through hole is provided with a bearing for supporting the rotating shaft, the rotating shaft is inserted into the central portion of the rotor is coupled Characterized in that the coupling hole is formed.
또한, 상기 회전축은, 상기 허브와 결합되는 전방 측의 직경이 후방 측의 직경보다 점차 크게 형성된 것을 특징으로 한다.In addition, the rotating shaft is characterized in that the diameter of the front side coupled to the hub is formed gradually larger than the diameter of the rear side.
또한, 상기 회전축은 후면이 개방된 원통형으로 형성되어 상기 허브의 후방 측으로 일체로 연장 형성되고, 상기 회전자의 중앙부에 상기 회전축이 삽입되어 일체로 결합되는 원통형의 결합공이 형성되며, 상기 지지브래킷의 전방 측으로 상기 하우징 및 회전축의 내부를 통과하여 상기 허브가 회전 가능하게 결합되는 고정축이 돌출 고정된 것을 특징으로 한다.In addition, the rotating shaft is formed in a cylindrical shape with the rear opening is formed to extend integrally to the rear side of the hub, the rotating shaft is inserted into the central portion of the rotor is formed in the cylindrical coupling hole is integrally coupled, the support bracket Passing through the inside of the housing and the rotating shaft to the front side is characterized in that the fixed shaft is rotatably coupled to the hub.
또한, 상기 회전축은 후면이 개방된 원통형으로 형성되어 상기 허브의 후방 측으로 일체로 연장 형성되고, 상기 하우징의 전면으로 상기 회전축이 삽입되도록 하우징의 내측방으로 원통형으로 절곡 형성되고 내측면에 상기 회전축을 지지하는 베어링이 결합된 축삽입공이 형성되며, 상기 회전자의 중앙부에 상기 회전축의 직경과 대응되는 직경으로 형성되어 회전축의 끝단에 일체로 고정되는 결합관이 형성된 것을 특징으로 한다.In addition, the rotating shaft is formed in a cylindrical shape with the rear side open to extend integrally to the rear side of the hub, is formed in a cylindrical bent inwardly of the housing so that the rotating shaft is inserted into the front of the housing and the rotating shaft on the inner side Shaft insertion hole is formed is coupled to the bearing to support, characterized in that formed in the center portion of the rotor having a diameter corresponding to the diameter of the rotating shaft is formed with a coupling tube integrally fixed to the end of the rotating shaft.
또한, 상기 회전축은 후면이 개방된 원통형으로 형성되어 상기 허브의 후방 측으로 일체로 연장 형성되고, 상기 회전자의 중앙부에 상기 회전축과 대응되는 직경으로 관통 형성되어 회전축의 끝단이 일체로 고정되는 결합공이 형성되며, 상기 지지브래킷의 전방 측으로 전면이 개방되어 상기 지지브래킷의 내측 공간과 연통되고 상기 하우징의 내측으로 삽입 고정되며 외측 끝단에 상기 회전축이 회전 가능하게 결합되도록 베어링이 결합된 지지관이 돌출 형성된 것을 특징으로 한다.In addition, the rotating shaft is formed in a cylindrical shape with the back of the opening is formed integrally extending to the rear side of the hub, the coupling hole is formed through the diameter corresponding to the rotating shaft in the central portion of the rotor is fixed to the end of the rotating shaft integrally Is formed, the front side is opened to the front side of the support bracket is in communication with the inner space of the support bracket and inserted into the inside of the housing fixed and the support tube coupled to the bearing so that the rotating shaft is rotatably coupled to the outer end is formed It is characterized by.
도 1은 본 발명의 제1 실시예를 보인 종단면도.1 is a longitudinal sectional view showing a first embodiment of the present invention.
도 2는 본 발명의 제2 실시예를 보인 종단면도.Figure 2 is a longitudinal sectional view showing a second embodiment of the present invention.
도 3은 본 발명의 제3 실시예를 보인 종단면도.Figure 3 is a longitudinal sectional view showing a third embodiment of the present invention.
도 4는 본 발명의 제4 실시예를 보인 종단면도.Figure 4 is a longitudinal sectional view showing a fourth embodiment of the present invention.
도 5는 종래 풍력발전기의 일 예를 보인 종단면도.Figure 5 is a longitudinal sectional view showing an example of a conventional wind power generator.
이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참고로 하여 더욱 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
도 1은 본 발명의 제1 실시예를 보인 종단면도로서, 도시된 것과 같이 본 발명은 바람의 힘에 의해 회전되는 로터(20)와 발전기(30) 사이에 별도의 증속기가 결합되지 않고 로터(20)의 회전이 직접 발전기(30)로 연결되도록 한 풍력발전기에 관한 것으로서, 특히 발전기(30)가 타워(10)의 상단에서 이격된 위치에 배치되어 지지브래킷(40)에 의해 고정되도록 하여 설계가능한 발전기(30)의 직경에 제약이 사라지도록 한 로터와 발전기가 지지브래킷의 전면에 결합된 풍력발전기에 관한 것이다.Figure 1 is a longitudinal cross-sectional view showing a first embodiment of the present invention, as shown in the present invention is a rotor (rotor) is not coupled between the rotor 20 and the generator 30 is rotated by the force of the wind ( 20 is related to a wind power generator that is directly connected to the rotation of the generator 30, in particular, the generator 30 is designed to be fixed to the support bracket 40 is disposed at a position spaced apart from the top of the tower (10) It relates to a wind turbine with a rotor and a generator coupled to the front of the support bracket so that restrictions on the diameter of the generator 30 are eliminated.
상기 타워(10)는 풍력발전기의 각종 부품을 지면과 이격된 위치에서 지지하는 구조물로서, 강성을 갖는 금속봉재 등으로 형성되도록 하고, 풍속 및 풍량이 큰 높은 위치에서 로터(20)가 배치되도록 하기 위하여 지면과 수직으로 배치되도록 한다.The tower 10 is a structure for supporting various parts of the wind turbine at a position spaced from the ground, to be formed of a metal rod having rigidity, and to allow the rotor 20 to be disposed at a high position where the wind speed and the wind volume are high. To be perpendicular to the ground.
상기 로터(20)는 바람의 힘에 의해 회전되면서 상기 회전자(33)를 회전 작동시키는 것으로서, 중앙부에 상술한 회전자(33)와 동일 중심을 가지는 허브(21)가 형성되도록 하고, 상기 허브(21)의 후방 측으로 회전축이 돌출 결합되도록 하며, 상기 허브(21)의 외측으로 다수의 로터블레이드를 결합하여 바람의 힘이 로터블레이드를 회전시키면 허브(21)가 회전되면서 최종적으로 이에 결합된 회전축이 회전되도록 한다.The rotor 20 rotates and operates the rotor 33 while being rotated by the force of the wind, so that the hub 21 having the same center as the above-described rotor 33 is formed in the center portion, and the hub Rotating shaft is protrudingly coupled to the rear side of the 21, by combining a plurality of rotor blades to the outside of the hub 21, if the force of the wind rotates the rotor blade, the hub 21 is rotated and finally coupled to it Let it rotate.
상기 발전기(30)는 상기 로터(20)의 회전에 의해 회전되면서 전력을 생산하는 것으로서, 상기 로터(20)의 후방 측으로 상기 타워(10)의 상단부 외측에 배치되고 원통형 몸체의 내측면에 결합된 하우징과, 상기 하우징의 내측 공간에 회전 가능하게 결합되고, 상술한 로터(20)와 결합되어 회전되는 회전자(33)로 구성된다.The generator 30 is to be rotated by the rotation of the rotor 20 to produce power, which is disposed outside the upper end of the tower 10 toward the rear side of the rotor 20 and coupled to the inner side of the cylindrical body And a rotor 33 rotatably coupled to the housing and the inner space of the housing and coupled to the rotor 20 and rotated.
이때, 상기 하우징의 내측면에는 발전기(30)의 고정자(32)가 고정 배치되도록 함으로써, 회전자(33)와의 전자기 유도에 의한 원활한 전력 생산이 이루어지도록 하는 것이 바람직하며, 하우징의 내측으로는 회전축을 지지하는 다수의 베어링(312)이 결합되도록 하는 것이 바람직하다.At this time, the stator 32 of the generator 30 is fixedly disposed on the inner surface of the housing, so that smooth power generation by electromagnetic induction with the rotor 33 is achieved. It is desirable to allow a plurality of bearings 312 to support the coupling.
상기 지지브래킷(40)은 상기 발전기(30) 및 로터(20)가 타워(10)의 상단에 일체로 고정되도록 함과 동시에 발전기(30) 및 로터(20)의 하중이 안정적으로 타워(10)로 전달되도록 하는 것으로서, 하면이 평면을 이루면서 타워(10)의 상단에 고정되도록 하고, 전방 측이 지면과 수직 방향으로 배치되도록 하여 발전기(30)가 고정되도록 하며, 후방 측으로는 발전기(30)의 후면 측으로 상향 경사지게 배치된 후방하중지지부(41)를 형성하여 발전기(30) 및 로터(20)의 하중이 분산되면서 견고한 고정이 이루어지도록 한다.The support bracket 40 allows the generator 30 and the rotor 20 to be integrally fixed to the top of the tower 10 and at the same time the load of the generator 30 and the rotor 20 is stably tower 10. As to be transmitted to, the bottom surface is fixed to the top of the tower 10 while forming a plane, the front side is arranged in a vertical direction with the ground so that the generator 30 is fixed, the rear side of the generator 30 The rear load supporting portion 41 is formed to be inclined upwardly to the rear side, so that the loads of the generator 30 and the rotor 20 are dispersed while being firmly fixed.
상기와 같이 구성됨에 따라, 하우징의 직경이 커지더라도 하우징이 타워(10)에 걸리거나 접촉하지 않게 되어 하우징 및 회전자(33)의 설계 가능한 직경에 제약이 줄어들게 되고, 이에 의해 하우징 및 회전자(33)의 직경을 크게 제작할 수 있게 되며, 고정자(32)와 회전자(33)가 마주보는 부분에서의 각속도가 증가되어 전력 생산 효율이 향상되는 것이다.According to the configuration as described above, even if the diameter of the housing increases, the housing is not caught or contact with the tower 10, thereby reducing the constraint on the designable diameter of the housing and the rotor 33, thereby reducing the housing and the rotor ( The diameter of 33) can be made large, and the angular velocity at the part where the stator 32 and the rotor 33 face each other is increased, thereby improving the power production efficiency.
더불어, 상술한 회전축은 강성을 갖는 금속봉재 등으로 형성되도록 하되, 상기 하우징의 전면 및 후면에는 상기 회전축이 삽입되도록 관통된 관통공(311)이 형성되도록 하고, 상기 관통공(311)의 내측면에 상기 회전축을 지지하는 베어링(312)이 구비되도록 하며, 상술한 회전자(33)의 중앙부에는 상기 회전축이 삽입되어 결합되는 관 형상의 결합공(331)이 형성되도록 한다.In addition, the above-described rotation shaft is to be formed of a metal rod having a rigid, etc., the through hole 311 is formed in the front and rear of the housing so that the rotation shaft is inserted, the inner surface of the through hole 311 A bearing 312 supporting the rotating shaft is provided, and a tubular coupling hole 331 to which the rotating shaft is inserted and coupled is formed at the center of the rotor 33.
이에 따라, 회전축의 전방 측 및 후방 측이 동시에 하우징에 지지됨으로써, 회전축의 회전 과정에서 발생되는 진동이 방지될 뿐만 아니라, 회전축의 휘어짐을 더욱 효과적으로 방지하고, 베어링(312)의 직경을 최소화할 수 있게 되어 풍력발전기의 유지 및 보수가 간편하게 이루어지게 되는 것이다.As a result, the front side and the rear side of the rotating shaft are simultaneously supported by the housing, thereby not only preventing vibration generated in the rotating process of the rotating shaft, but also effectively preventing the bending of the rotating shaft and minimizing the diameter of the bearing 312. It will be easy to maintain and repair the wind turbine.
또한, 상기 회전축은 허브(21)와 연결되는 전방 측의 직경이 그 반대 측 직경보다 점차 커지게 형성되도록 함으로써, 강풍이 불면서 로터(20)가 발전기(30) 측으로 밀릴 때 회전축의 이동 거리가 제한되면서 발전기(30)의 회전자(33)가 원활한 회전을 유지할 수 있게 되어 안정적인 전력의 생산이 이루어지도록 하는 것이 바람직하다.In addition, the rotating shaft is formed so that the diameter of the front side connected to the hub 21 is gradually larger than the diameter of the opposite side, the movement distance of the rotating shaft is limited when the rotor 20 is pushed toward the generator 30 during the strong wind blowing While the rotor 33 of the generator 30 is able to maintain a smooth rotation it is desirable to ensure a stable power production is made.
도 2는 본 발명의 제2 실시예를 보인 종단면도로서, 본 실시예에서는 상술한 제1 실시예의 구성요소 중 상술한 회전축은 후면이 개방된 원통형으로 형성되도록 하여 상기 허브(21)의 후방 측으로 돌출되도록 하고, 상기 회전자(33)의 중앙부에는 상기 회전축이 삽입되어 일체로 결합되는 원통형의 결합공(331)이 형성되도록 하며, 상기 지지브래킷(40)의 전방 측으로 상기 하우징 및 회전축의 내부를 통과하여 상기 허브(21)의 내측에 회전 가능하게 결합되는 고정축(42)이 돌출되어 고정되도록 한다.FIG. 2 is a longitudinal sectional view showing a second embodiment of the present invention. In the present embodiment, the above-described rotating shaft among the components of the first embodiment is formed to have a cylindrical shape with a rear surface open to the rear side of the hub 21. To protrude, the center of the rotor 33 is inserted into the rotating shaft is inserted into the cylindrical coupling hole 331 to be integrally formed, and the inside of the housing and the rotating shaft to the front side of the support bracket 40 Passing through the fixed shaft 42 rotatably coupled to the inner side of the hub 21 to be fixed to protrude.
이때, 상기 고정축(42)은 상기 회전축 및 결합공(331)과는 이격된 상태를 유지하도록 하여 회전축 및 회전자(33)가 회전될 때 고정축(42)과의 마찰이 발생되지 않도록 하는 것이 바람직하고, 상기 허브(21)의 내측에는 상기 고정축(42)이 회전 가능하게 결합되도록 하는 하나 이상의 베어링(312)을 구비하여 로터(20)의 하중이 발전기(30)를 거치지 않고 고정축(42)을 통해 직접 지지브래킷(40)으로 전달되도록 한다.At this time, the fixed shaft 42 is to maintain the spaced apart from the rotating shaft and the coupling hole 331 so that the friction with the fixed shaft 42 does not occur when the rotating shaft and the rotor 33 is rotated Preferably, the hub 21 is provided with one or more bearings 312 to be rotatably coupled to the fixed shaft 42 so that the load of the rotor 20 does not pass through the generator 30 fixed shaft Directly through 42 to the support bracket 40.
이에 따라, 로터(20)의 하중과 발전기(30)의 하중이 각각 별도로 지지브래킷(40)에 분산되어 전달됨으로써, 지지브래킷(40)의 하중지지력이 극대화될 뿐만 아니라, 발전기(30)에 토크를 전달하는 베어링(312)의 직경이 작아져 허브(21)의 중량이 감소된다.Accordingly, the load of the rotor 20 and the load of the generator 30 are separately distributed and transmitted to the support bracket 40, thereby not only maximizing the load bearing force of the support bracket 40, but also torqueing the generator 30. The diameter of the bearing 312 for transmitting the smaller the weight of the hub 21 is reduced.
도 3은 본 발명의 제3 실시예를 보인 종단면도로서, 본 실시예에서는 상술한 제1 실시예의 구성요소 중 상술한 회전축이 후면이 개방된 원통형으로 형성되도록 하여 상기 허브(21)의 후방 측으로 돌출되도록 하고, 상기 하우징의 전면으로는 상기 회전축이 삽입되도록 하우징의 내측방을 향해 원통형으로 절곡되고, 내측면에 회전축을 지지하는 베어링(312)이 결합된 축삽입공(313)이 형성되도록 하며, 상기 회전자(33)의 중앙부에는 회전축의 직경과 대응되는 직경으로 형성되어 회전축의 끝단에 일체로 고정되는 결합관(332)이 형성되도록 한다.3 is a longitudinal sectional view showing a third embodiment of the present invention. In this embodiment, the above-described rotating shaft among the components of the first embodiment is formed to have a cylindrical shape with a rear side open to the rear side of the hub 21. To protrude, the front of the housing is bent in a cylindrical shape toward the inner side of the housing so that the rotation shaft is inserted, the shaft insertion hole 313 is formed to combine the bearing 312 supporting the rotation shaft on the inner surface The central portion of the rotor 33 is formed to a diameter corresponding to the diameter of the rotating shaft to form a coupling pipe 332 integrally fixed to the end of the rotating shaft.
이에 따라, 회전축과 하우징의 축삽입공(313) 사이에 베어링(312)이 배치되면서 빗물이나 눈 또는 먼지 등이 발전기(30) 내부로 유입되는 것을 효과적으로 차단할 수 있게 되어 습기 및 이물질에 의한 단락을 방지할 뿐만 아니라, 발전기(30) 내부의 각 부품의 부식을 방지할 수 있게 되는 것이다.Accordingly, as the bearing 312 is disposed between the rotating shaft and the shaft insertion hole 313 of the housing, it is possible to effectively block rain or snow or dust from entering the generator 30, thereby preventing short circuits due to moisture and foreign matter. In addition to preventing, it is possible to prevent the corrosion of each component inside the generator (30).
도 4는 본 발명의 제4 실시예를 보인 종단면도로서, 본 실시예에서는 상술한 제1 실시예의 구성요소 중 상술한 회전축이 후면이 개방된 원통형으로 형성되도록 하여 허브(21)의 후방 측으로 돌출 형성되도록 하고, 회전자(33)의 중앙부에는 회전축의 직경과 대응되는 직경으로 관통 형성되어 상기 회전축이 일체로 고정되는 결합공(331)이 형성되도록 하며, 상술한 지지브래킷(40)의 전방 측으로는 전면이 개방되면서 지지브래킷(40)의 내측 공간과 연통되고 상기 하우징의 내측으로 삽입 고정되며 외측 끝단에는 상기 회전축이 회전 가능하게 결합되도록 하느 베어링(312)이 결합된 지지관(43)이 돌출 형성되도록 한다.4 is a longitudinal sectional view showing a fourth embodiment of the present invention. In this embodiment, the above-described rotary shaft among the components of the first embodiment is formed so as to have a cylindrical shape with a rear side open, and protrudes toward the rear side of the hub 21. To be formed, through the center portion of the rotor 33 is formed through the diameter corresponding to the diameter of the rotating shaft to form a coupling hole 331 is fixed to the rotating shaft integrally, to the front side of the support bracket 40 described above The front tube is opened and communicates with the inner space of the support bracket 40, and inserted into the inside of the housing and fixed to the outer end of the support tube 43, the bearing 312 is coupled to the rotating shaft to be rotatably coupled protrudes To form.
이에 따라, 지지브래킷(40)의 내측 공간 부터 발전기(30)를 통과하여 허브(21)의 내측 공간이 일체로 연통되어 형성됨으로써 작업자가 승강기 등을 이용해 지지브래킷(40)의 내측 공간으로 들어선 후 간편하게 허브(21)까지 접근할 수 있게 되어 풍력발전기의 유지 및 보수 작업이 간편하게 이루어지게 되는 것이다.Accordingly, since the inner space of the hub 21 is integrally communicated with the generator 30 through the generator 30 from the inner space of the support bracket 40, the worker enters the inner space of the support bracket 40 by using an elevator or the like. The hub 21 can be easily accessed, so that the maintenance and repair work of the wind power generator is made simple.
이에, 본 발명은 설계 가능한 발전기의 직경 제한이 최소화되면서 로터 및 발전기가 타워에 안정적으로 고정되도록 한 풍력발전기를 제공함으로서, 발전기의 고정자와 회전자가 대응되는 위치에서의 각속도가 극대화되면서 시스템의 중량이 최소화되도록 하며 발전기를 타워의 상단에 견고하게 고정하여 발전기 진동을 최소화하는 효과를 가지게 된다.Accordingly, the present invention provides a wind power generator that allows the rotor and the generator to be stably fixed to the tower while minimizing the diameter limitation of the designable generator, thereby maximizing the angular velocity at the position where the stator and the rotor of the generator correspond to the weight of the system. Minimize the vibration of the generator by ensuring that the generator is firmly fixed to the top of the tower.
또한, 본 발명은 하우징에 관통공을 형성하고, 회전축이 관통공에 삽입되도록 하여 회전축을 지지하는 베어링의 직경이 작으면서도 하우징과의 견고한 결합이 이루어지도록 함으로서, 베어링의 설치 및 분해보수가 간편하게 이루어지면서 로터의 작동 과정에서 발생되는 진동이 저감되는 효과를 가지게 된다.In addition, the present invention is to form a through hole in the housing, so that the rotary shaft is inserted into the through hole so that the rigid coupling with the housing is made while the diameter of the bearing supporting the rotating shaft is made, the installation and disassembly and repair of the bearing is made easy The vibration generated during the operation of the rotor is reduced.
또한, 본 발명은 회전축의 길이가 짧아진 만큼 굽힘강성이 증대되고, 전방측 직경이 후방측 보다 크게 형성되도록 하여 로터가 회전될 때 회전축이 후방으로 이동되는 것이 방지되도록 함으로서, 강풍에 의해 회전축이 휘어지거나 손상되는 것을 방지할 수 있을 뿐만 아니라 발전기가 더욱 안정적으로 전력을 생산할 수 있는 효과를 가지게 된다.In addition, the present invention is to increase the bending stiffness as the length of the rotating shaft is shortened, the front diameter is formed larger than the rear side to prevent the rotating shaft is moved to the rear when the rotor is rotated, so that the rotating shaft by the strong wind Not only can it be prevented from bending or damaging, but it also has the effect of generating a more stable power generator.
또한, 본 발명은 고정축을 구비하여 로터가 지지브래킷에서 돌출된 고정축에 직접 고정되도록 함으로서, 발전기에 토크를 전달하는 베어링의 직경이 작아져 허브의 중량이 감소될 뿐만 아니라, 로터의 하중이 발전기를 거치지 않고 직접 지지브래킷에 전달되어 지지력이 극대화되는 효과를 가지게 된다.In addition, the present invention has a fixed shaft so that the rotor is fixed directly to the fixed shaft protruding from the support bracket, the diameter of the bearing for transmitting torque to the generator is reduced, the weight of the hub is reduced, as well as the load of the generator Directly transmitted to the support bracket without going through will have the effect of maximizing the supporting force.
또한, 본 발명은 하우징에 축삽입공을 형성하고, 회전자에 결합관을 형성하여 하우징과 회전축 사이의 틈을 통해 하우징의 내측으로 빗물이나 먼지 등이 유입되는 것이 방지되면서 로터가 원활하게 회전되도록 함으로서, 빗물의 유입에 의한 발전기 내부의 부식 발생을 줄일 뿐만 아니라, 발전기 내부의 먼지 유입에 의한 효율 저하 및 고장을 줄이는 효과를 가지게 된다.In addition, the present invention is to form a shaft insertion hole in the housing, to form a coupling tube in the rotor to prevent the inflow of rainwater or dust into the housing through the gap between the housing and the rotating shaft so that the rotor rotates smoothly As a result, not only the occurrence of corrosion in the generator due to the inflow of rainwater, but also the effect of reducing the efficiency and failure caused by the inflow of dust in the generator.
또한, 본 발명은 지지브래킷에 회전축이 결합되는 원통형의 지지관을 형성하여 작업자가 지지브래킷과 발전기 및 허브 사이를 간편하게 이동할 수 있도록 함으로서, 풍력발전기의 유지 및 보수 작업이 더욱 간편하게 이루어지는 효과를 가지게 된다.In addition, the present invention is to form a cylindrical support tube coupled to the rotating shaft on the support bracket to enable the operator to easily move between the support bracket and the generator and the hub, the wind turbine generator maintenance and repair work will be more convenient. .

Claims (6)

  1. 중앙부에 허브가 형성되고, 상기 허브의 후방 측으로 회전축이 돌출되며, 상기 허브의 외측방으로 다수의 로터블레이드가 결합된 로터;A hub having a center portion formed therein, a rotating shaft protruding toward the rear side of the hub, and a plurality of rotor blades coupled to the outer side of the hub;
    상기 로터의 후방 측으로 타워의 상부 외측에 배치되고 원통형 몸체의 내측면에 고정자가 결합된 하우징과, 상기 하우징의 내측에 회전 가능하게 결합되어 상기 로터의 회전에 의해 회전 작동되는 회전자로 구성되어 전력을 생산하는 발전기;And a housing disposed on the upper outer side of the tower to the rear side of the rotor and having a stator coupled to an inner side of the cylindrical body, and a rotor rotatably coupled to the inner side of the housing to be rotatably operated by the rotation of the rotor. Generator to produce;
    상기 타워의 상단에 고정되고, 전면에 상기 하우징이 고정되어 상기 로터 및 발전기가 타워에 일체로 결합되도록 하는 지지브래킷;A support bracket fixed to an upper end of the tower and fixed to a front surface of the housing such that the rotor and the generator are integrally coupled to the tower;
    을 포함하는 전방 배치형 발전기를 갖는 풍력발전기.Wind power generator having a front-end generator comprising a.
  2. 제 1항에 있어서,The method of claim 1,
    상기 하우징의 전면 및 후면에 상기 회전축이 삽입되도록 관통된 관통공이 형성되고,Through holes are formed in the front and rear of the housing so that the rotating shaft is inserted,
    상기 관통공의 내측면에 상기 회전축을 지지하는 베어링이 구비되며,A bearing for supporting the rotation shaft is provided on the inner surface of the through hole,
    상기 회전자의 중앙부에 상기 회전축이 삽입되어 결합되는 결합공이 형성된 것을 특징으로 하는 전방 배치형 발전기를 갖는 풍력발전기.Wind turbine generator having a front-position generator characterized in that the coupling hole is formed by coupling the rotation shaft is inserted in the center of the rotor.
  3. 제 2항에 있어서,The method of claim 2,
    상기 회전축은,The rotation axis is,
    상기 허브와 결합되는 전방 측의 직경이 후방 측의 직경보다 점차 크게 형성된 것을 특징으로 하는 전방 배치형 발전기를 갖는 풍력발전기.The front wind turbine generator having a front-side generator characterized in that the diameter of the front side coupled to the hub is formed gradually larger than the diameter of the rear side.
  4. 제 1항에 있어서,The method of claim 1,
    상기 회전축은 후면이 개방된 원통형으로 형성되어 상기 허브의 후방 측으로 일체로 연장 형성되고,The rotating shaft is formed in a cylindrical shape with the rear open and extends integrally to the rear side of the hub,
    상기 회전자의 중앙부에 상기 회전축이 삽입되어 일체로 결합되는 원통형의 결합공이 형성되며,The rotating shaft is inserted into the central portion of the rotor is formed a cylindrical coupling hole that is integrally coupled,
    상기 지지브래킷의 전방 측으로 상기 하우징 및 회전축의 내부를 통과하여 상기 허브가 회전 가능하게 결합되는 고정축이 돌출 고정된 것을 특징으로 하는 전방 배치형 발전기를 갖는 풍력발전기.Wind turbines with a front-side generator characterized in that the fixed shaft is rotatably fixed to pass through the inside of the housing and the rotating shaft to the front side of the support bracket rotatably coupled.
  5. 제 1항에 있어서,The method of claim 1,
    상기 회전축은 후면이 개방된 원통형으로 형성되어 상기 허브의 후방 측으로 일체로 연장 형성되고,The rotating shaft is formed in a cylindrical shape with the rear open and extends integrally to the rear side of the hub,
    상기 하우징의 전면으로 상기 회전축이 삽입되도록 하우징의 내측방으로 원통형으로 절곡 형성되고 내측면에 상기 회전축을 지지하는 베어링이 결합된 축삽입공이 형성되며,A shaft insertion hole is formed to be cylindrically bent inwardly of the housing so that the rotating shaft is inserted into the front surface of the housing and a bearing supporting the rotating shaft is formed on the inner surface thereof.
    상기 회전자의 중앙부에 상기 회전축의 직경과 대응되는 직경으로 형성되어 회전축의 끝단에 일체로 고정되는 결합관이 형성된 것을 특징으로 하는 전방 배치형 발전기를 갖는 풍력발전기.Wind turbine generator having a front-side generator characterized in that the coupling portion is formed in the central portion of the rotor having a diameter corresponding to the diameter of the rotating shaft integrally fixed to the end of the rotating shaft.
  6. 제 1항에 있어서,The method of claim 1,
    상기 회전축은 후면이 개방된 원통형으로 형성되어 상기 허브의 후방 측으로 일체로 연장 형성되고,The rotating shaft is formed in a cylindrical shape with the rear open and extends integrally to the rear side of the hub,
    상기 회전자의 중앙부에 상기 회전축과 대응되는 직경으로 관통 형성되어 회전축의 끝단이 일체로 고정되는 결합공이 형성되며,A through hole is formed in the central portion of the rotor with a diameter corresponding to the rotating shaft to form a coupling hole to which the end of the rotating shaft is integrally fixed.
    상기 지지브래킷의 전방 측으로 전면이 개방되어 상기 지지브래킷의 내측 공간과 연통되고 상기 하우징의 내측으로 삽입 고정되며 외측 끝단에 상기 회전축이 회전 가능하게 결합되도록 베어링이 결합된 지지관이 돌출 형성된 것을 특징으로 하는 전방 배치형 발전기를 갖는 풍력발전기.The front side is opened to the front side of the support bracket is in communication with the inner space of the support bracket, and inserted into the inside of the housing fixed and the support tube coupled to the bearing so that the rotating shaft is rotatably coupled to the outer end is characterized in that the projected Wind generator having a front-positioned generator.
PCT/KR2010/003559 2009-06-04 2010-06-03 Wind turbine with generator disposed at front thereof WO2010140842A2 (en)

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JP2012513870A JP2012528982A (en) 2009-06-04 2010-06-03 Wind generator with forward-type generator
US13/322,924 US9057355B2 (en) 2009-06-04 2010-06-03 Wind turbine with generator disposed at front thereof
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